JP2001190128A - Harvester for vegetable with formed head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harvester for a vegetable with a formed head capable of surely cutting the root part of the vegetable and harvesting the vegetable so as not to damage the vegetable by a ready operation even if the vegetable with formed head is lodged or is shifted from a row and grows. SOLUTION: In this harvester 30 for the vegetable with formed head traveling in a field by a traveling means 32 and harvesting the vegetable 22 with formed head planted in the field, the harvester is characterized in that the harvester is equipped with a frame 37 having a front side mounted on the traveling means 32 so as to enable free shaking in the right and left direction and in the vertical direction, a reaping blade 40 which is attached to the frame 37 and reaps the root part of the vegetable 22 with formed head and two guide disks 38 which are respectively rotatable around two revolving shafts 60 extended in the vertical direction, and nip the vegetable 22 with formed head before being reaped by the reaping blade 40, are opposed and installed at the front side of the reaping blade 40 of the frame 37.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spherical vegetable harvester that travels in a field by a traveling means and harvests spherical vegetables such as lettuce and cabbage.

[0002]

2. Description of the Related Art A conventional spherical vegetable harvester is shown in FIGS.
And the spherical vegetable harvester will be described. A spherical vegetable harvester 10 (hereinafter simply referred to as a harvester) shown above has a driver's seat 1 above a crawler 12 for traveling in a field.
4 and a harvesting device 15. The harvesting device 15 is provided on the left side of the driver's seat 14 in the front-rear direction. A container 16 for storing the harvested spherical vegetables is disposed behind the harvesting device 15.

[0003] In front of the harvesting device 15, a crawler 12
The belt conveyor 17 is provided so as to protrude further forward, and two discs 18 for taking in spherical vegetables are provided at the end of the belt conveyor 17. The belt conveyor 17 includes an upper belt conveyor 17a and a lower belt conveyor 17b so as to sandwich and transport the harvested spherical vegetables between upper and lower sides. Each disk 18 rotates in a direction in which spherical vegetables are taken into the belt conveyor 17 by driving means such as a motor on both sides of the end of the belt conveyor 17. By providing the rotating disk 18 in this way, it is possible to raise and fall down the spherical vegetables that have fallen or tilted, without fail. Also, the disks 18, 18
A cutter (not shown) is provided on the rear side of, and cuts the root of the spherical vegetables taken in by the disks 18.

[0004] The spherical vegetables whose roots have been cut are dressed like being sandwiched between an upper belt conveyor 17a and a lower belt conveyor 17b, and are conveyed rearward. Next to the transport device 15 on the crawler 12, another operator different from the driver is on board, and it is possible to confirm the cut portion of the spherical vegetables transported to the transport device 15 and remove the outer leaves. After performing the work and preparing the spherical vegetables to a state where they can be shipped, they are stored in the container 16.

At the rear end of the belt conveyor 17,
A cylinder 19 is provided so that the belt conveyor 17 and a cutter or a disk 18 provided on the belt conveyor 17 move up and down with respect to the crawler 12. The operation of the cylinder 19 causes the belt conveyor 17 to rotate about the rotation shaft 9, and the disk 18 and the cutter provided at the tip of the belt conveyor 17 move up and down with respect to the ground. In other words, the ground of the field has irregularities, and the driver operates the cylinder 19 so that the position of the cutter or the disc 18 follows the irregularities of the ground so that the spherical vegetables can be reliably cut at the root.

[0006]

In the harvester described above, there is provided a rotatably driven disk for surely taking in the spherical vegetables in the part where the row has fallen or the row is not straight but the row is bent toward the cutter. However, such a disk that rotates by itself has a problem in that spherical vegetables are damaged by the driving force of this rotation. Especially when harvesting lettuce etc. which are soft spherical vegetables with leaves,
Such disks cannot be used. In addition, there is a problem that the driver who drives the traveling vehicle must always drive while adjusting the upper and lower positions of the conveyor so that the roots of the spherical vegetables abut on the cutter. Furthermore, since the harvesting device alone cannot move in the left-right direction with respect to the traveling direction of the traveling vehicle, if the row of spherical vegetables is bent, it must be driven according to the bent row. Did not. For this reason, the driving operation is difficult, and when capturing spherical vegetables that are slightly disturbed from the row, it is necessary to forcibly capture the spherical vegetables by driving the disk, in which case the spherical vegetables may be damaged. There is a problem that there is.

Therefore, the present invention has been made to solve the above-mentioned problem, and the object of the present invention is to provide a spherical vegetable which is falling down or growing out of line.
It is an object of the present invention to provide a spherical vegetable harvesting machine that can easily cut and harvest at the root without damaging the vegetable.

[0008]

The present invention has the following arrangement to achieve the above object. That is, according to the spherical vegetable harvesting machine according to the present invention, in a spherical vegetable harvesting machine that travels in a field by traveling means and harvests spherical vegetables planted in the field, the forward side is relative to the traveling means. A frame provided to be swingable in the left-right direction and the up-down direction, a cutting blade attached to the frame to cut the root of the spherical vegetable, and two rotatable shafts extending in the up-down direction. And two disc-shaped guide discs provided forward of the cutting blade of the frame so as to face each other with the spherical vegetables before being cut by the cutting blade. By adopting this configuration, the freely rotating guide disc provided on the frame can reliably and undamaged the spherical vegetables to be cut next and guide them toward the cutting blade. Even a spherical vegetable that grows out of place can be harvested by cutting it at the root without causing damage.
Also, since the front side of the frame can swing up, down, left and right,
The driver can follow the position of the cutting blade according to the disturbance of the row with the swingable frame and the guide disk without changing the traveling direction according to the disturbance of the row of spherical vegetables, so the position of the cutting blade is No adjustment is required, and the driving operation is facilitated.

Further, since each of the guide discs is provided so as to be inclined so that the opposing sides thereof are respectively lowered downward, the guide discs are inserted between the outer leaves and the contents which are not necessary at the time of harvesting, and the spherical vegetables are inserted. Can be reliably guided to the cutting blade without damaging the blade. Further, if the distance between the guide disks is adjustable, the guide disks can be used for harvesting spherical vegetables of various sizes. Furthermore, since the rotation axis of each guide disk is provided so as to be able to incline forward and backward with respect to the traveling direction with respect to the frame, the guide disks can be adjusted according to the inclination of the ground or the like. In addition, if each of the guide disks is provided so as to be vertically movable, it is possible to harvest spherical vegetables of various sizes. If the cutting blade is provided so as to be vertically movable, it can harvest spherical vegetables of various sizes.

Further, by providing a pressing force adjusting means capable of adjusting a pressing force with which the front side of the frame is pressed toward the ground, the force of pressing the guide disk against the ground can be adjusted by the hardness of the ground. This makes it easy to follow the unevenness of the ground without the guide disk going down the ground. Furthermore, since the frame holds the guide disk so that the guide disk can always rotate in a plane parallel to the ground, even when the front side of the frame swings up and down. In addition, it is possible to more reliably follow the row in which the spherical vegetables are planted in the guide disk.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in more detail with reference to the drawings. First, the overall configuration of the spherical vegetable harvester will be described based on the overall perspective view of the spherical vegetable harvester of the present invention shown in FIG. The spherical vegetable harvester 30 according to the present invention is capable of continuously harvesting spherical vegetables 22 such as lettuce and cabbage planted on a ridge 20 in a field along a row of the ridge 20. Reference numeral 32 denotes a traveling means such as a tractor. The traveling means 32 is not limited to a tractor as long as it can travel on a field, and may be, for example, a vehicle with a crawler.

At the rear of the traveling means 32, a mounting arm 35 for mounting a spherical vegetable harvester main body (hereinafter simply referred to as a harvester main body) 34 is mounted and fixed.
The mounting arm 35 is mounted so as to extend in a lateral direction of the traveling vehicle 32 (a direction orthogonal to a traveling direction indicated by an arrow). 31 is a traveling vehicle 32 from the mounting arm 35
This is a mounting member extending toward.

The main body 34 of the harvester includes a frame 37 having a cutting blade 40, a guide disk 38, a transfer device 36 and the like.
Is provided on the front side of the mounting arm 35 so as to be swingable in the left-right direction with respect to the traveling means 32. The detailed configuration and operation of the harvester body 34 will be described later.
The worker 2 is arranged behind the harvester body 34. The worker 2 checks the cut end of the spherical vegetable that has been harvested and has come out of the transport path 71 of the transport device 36 of the harvester main body 34, and removes the outer leaf when the outer leaf is attached,
Thereafter, the processing is transferred to a spherical vegetable processing device 39 provided on the rear side of the mounting arm 35.

The spherical vegetable processing apparatus 39 has a conveyor 43 rotating in a horizontal plane, and performs processing of the cut end of the root of the harvested spherical vegetables. That is, when the spherical vegetable is a lettuce, it is necessary to wash the juice in order to cause juice (milk) to come out of the cut and cause discoloration of the vegetable. The shower 21 is provided in the spherical vegetable processing device 39 in order to wash out the juice coming out of the cut. The worker 3 is also arranged in the spherical vegetable processing device 39. Worker 3
Uses the shower 21 to wash out the above-mentioned cuts and the like before packing the spherical vegetables into boxes, and after finishing washing, packs the cut vegetables. In addition, the spherical vegetable processing apparatus is not limited to the conveyor as shown in the drawing, and a plurality of storage containers or the like having a size enough to store spherical vegetables are connected and rotated on a horizontal plane. It may be a thing.

(First Embodiment of Harvester Main Body) Next, based on FIGS. 2 to 5, a first embodiment of a portion of the harvester main body 34 except for the transfer device 36 shown in FIG. 1 will be described. The form will be described in more detail. 2 to 5, the traveling vehicle 32 and the transport device 36 are not shown. First, the frame 37 provided on the mounting arm 35 so as to be swingable in the left-right direction will be described. 41 is
This is a U-shaped rear frame member provided on the rear side and opening upward. The rear frame member 41 includes two vertical members 41a and 41b that are vertically erected, and the two vertical members 41a.
a, 41b hung on the lower part of 41b. At the center of the lower surface of the lower member 41c, a rotating shaft 42 protruding downward is provided. The rotating shaft 42 is inserted into a bearing 44 provided on the mounting arm 35 so as to be freely rotatable. When the rotating shaft 42 freely rotates with respect to the mounting arm 35, the frame 37 can swing freely in the left-right direction with respect to the traveling means 32 (in the direction of arrow A in FIG. 2).

An upper link 45 and a lower link 46 are provided at the upper and lower portions of the vertical members 41a and 41b, respectively, which extend toward the front side and are rotatable vertically.
The front ends of the upper link 45 and the lower link 46 are attached to the front frame member 48 so as to be vertically rotatable. For this reason, the upper link 45 and the lower link 46 form parallel links on both the left and right sides. Front frame material 48
Are formed in a U-shape with an opening at the bottom, two longitudinal members 50a and 50b provided on each of the left and right sides, a lateral member 51a connecting the vertical members 50a on the front side, and a vertical member on the rear side. Lumber 5
0b are connected to each other.
Further, the lower ends of the vertical members 50a on the front side and the vertical members 50b on the rear side are connected by connecting members 52a and 52b, and the vertical members 50a on the front side and the connecting members 52a and 52b are
A vertical member 50a on the front side is pivotally mounted so as to be rotatable in the front-rear direction about a rotation shaft 53.

Numeral 40 denotes a cutting blade, which is attached to the lower end of the rear vertical member 50b. Cutting blade 4
0 is formed in an arc shape, and a sharp tip portion 40a is formed.
Is provided so as to face backward with respect to the traveling direction.
As described above, the cutting blade 40 is attached and fixed at the rear end portion with the sharp tip portion 40a facing rearward, so that adhesion of the remnants and the like to the blade when cutting the spherical vegetables is reduced. Also, the sharpness at the time of cutting is improved.

The cutting blade 40 can be moved up and down by rotating a handle 54. That is, the vertical member 5 on the rear side
Ob is formed in a cylindrical shape, and a thread groove is cut on the inner wall surface. A mandrel 56 is inserted into the vertical member 50b. The mandrel 56 is a screw rod that can be screwed into the screw groove, and the lower end of which is fixed to the cutting blade 40. For this reason, by turning the handle 54 provided at the upper end of the mandrel 56, the mandrel 56 can move up and down to adjust the position of the cutting blade 40 in the vertical direction. Thus, the cutting blade 40
The upper and lower positions are adjustable so that the cutting blades 40 can be securely arranged in accordance with the position of the root of the spherical vegetable 22 so that the root can be reliably harvested and the blade hits the leaf of the spherical vegetable. It is possible to prevent such a situation that a scratch is made.

The guide disks 38, 38 are freely rotatable disks, and the rotating shaft 60 may be provided at the lower end of the vertical member 50a on the front side in the up-down direction (vertical or non-vertical). ). In other words, the guide disks 38 are provided on the front side of the cutting blade 40, and are provided on both left and right sides of the spherical vegetable immediately before being harvested by the cutting blade 40. The distance between the guide disks 38 is the width of the horizontal member 5.
It can be adjusted by adjusting the interval between the vertical members 50a with respect to 1a. The spacing between the vertical members 50a can be adjusted by sliding the vertical members 50a along the axial direction of the horizontal member 51a.

The guide disk 38 is provided to direct the frame 37 in a direction in which the planted spherical vegetables exist. In other words, even when the row of spherical vegetables is disturbed, if one of the two guide disks 38 abuts on the outer periphery of the spherical vegetable located at a position deviated from the row, the guide disk 38 is moved from the spherical vegetable. By receiving more force, the rotating shaft 42 that rotates freely is moved so that the entire frame 37 faces the guide disk 38 side. For this reason, even when the rows of spherical vegetables are disturbed, it is possible to satisfactorily harvest without having to direct the traveling means 32 in the disturbed direction each time. The driver can be sure of harvesting by driving almost straight along the rows of spherical vegetables. This is an effect that can be exhibited in combination with the configuration in which the entire frame 37 is swingably provided in the left-right direction.

The guide disk 38 can be tilted in the front-rear direction (arrow B in FIG. 5). That is, by making the front vertical member 50a rotatable about the rotation shaft 53 of the connecting members 52a and 52b, the guide disk 38 has a rotation axis in a direction perpendicular to the traveling direction. It inclines. This guide disk 3
8 can be made by rotating the handle 62. The handle 62 is provided at the front end of the threaded rod 63. The screw rod 63 has an intermediate portion screwed into a female screw portion 64 provided at an upper end portion of the front side cross member 51a, and a distal end portion of the screw bar 63 provided at a fixing portion 65 provided at an upper end portion of the rear side cross member 51b. Fixed.

That is, when the handle 62 is rotated, the female screw portion 64 moves back and forth along the screw rod 63, whereby the front vertical member 50 a is centered on the rotation shaft 53 with respect to the rear vertical member 50 b. Pivoting, which allows the guide disc 38 to be tilted. When the spherical vegetables are guided to the cutting blade 40 by tilting the guide disc 38 in the front-rear direction, the guide disc 38
Can be inserted into the lower part of the spherical vegetable, and can be reliably guided without scratching. Further, the guide disk 38 may be inclined so as to slightly raise the front side. Thus, even when the ground surface has irregularities, the guide disk 38 can be prevented from dipping into the ground.

Further, the frame 37 extends between the lower side of the vertical member 50b on the rear side of the front frame member 48 and the upper side of the vertical member 41a and the vertical member 41b of the rear frame member 41.
A spring 66 is provided as an urging member for urging the front frame member 48, which is the front side of the front frame member 48, to be constantly pulled up. As described above, since the spring 66 is provided so as to raise the front side of the frame 37, the upper link 45 and the lower link 46, which are rotatable on the rear side, are lowered on the front side by the weight of the frame 37 itself. They do not touch or dive on the ground. That is,
Even when there are irregularities on the ground surface, the front side of the frame 37 moves up and down in accordance with the irregularities, so that the cutting blade 40 and the guide disc 38 exhibit a movement following the ground. Thereby, the cutting blade 40 and the guide disk 38
The vegetables can be reliably positioned at the root of the spherical vegetable, so that the vegetables can be harvested reliably without damaging the vegetables and without wasting the vegetables.

(Second Embodiment of Harvester Body) Next, a second embodiment of the harvester body 30 will be described with reference to FIGS. 6 and 7, the cutting blade 40 is omitted. In the second embodiment, a mechanism capable of adjusting the force with which the front end of the frame is pressed against the ground is employed. The pressing force referred to here is a force such that the front side is pressed against the ground by the weight of the frame provided so that the front side can swing freely.If this force is too large, the guide disk will sink into the ground. If the size is too small, the guide disc will be located above the spherical vegetables, and it will not be possible to satisfactorily mow.
In the present embodiment, the flat surface of the guide disk is held parallel to the ground, and the guide disk is always parallel to the ground even when the front side of the frame moves up and down. Configuration is adopted.

The detailed structure of this embodiment will be described. Frames 94 having a guide disk 38 at the front end are provided on both left and right sides of a cutting blade not shown in FIGS. 6 and 7, respectively. Each frame 94 is erected on a base 101 extending in a direction transverse to the traveling direction of the traveling means. The base portion 101 is provided so as to be rotatable in the front-rear direction with respect to a fixed member 96 which is a columnar member fixed to the traveling vehicle and extending in the lateral direction with respect to the traveling direction of the traveling means. Have been.

Reference numeral 104 denotes a rotation axis of the base 101.
Thus, the base 1 is attached to the rotating shaft 104 having the axis in the lateral direction.
Since the frame 01 is rotatably mounted, the frame 94 rotates about the rotation shaft 104 so that the front side of the frame 94 swings up and down.

The frame 94 includes an upper and lower frame 94a extending vertically and a front and rear frame 94b extending forward from an upper end of the upper and lower frame 94a. A guide disc mounting portion 98 is attached to the front end of the front and rear frames 94b. The guide disk 38 is freely rotatably mounted below the guide disk mounting portion 98. The guide disc mounting portion 98 is rotatably attached to a front end portion of the front and rear frame 94b around a turning shaft 99 extending in the lateral direction.

The fixing member 96 is provided with a fixing arm 100 extending upward. A rotating arm 102 extending forward is attached to the upper end of the fixed arm 100. The pivot arm 102 has its rear end sandwiched by the pin 109 with the mounting member 108 interposed therebetween.
08 so as to be rotatable up and down around a pin 109. The attachment member 108 is attached to the upper end of the fixed arm 100 so as to be rotatable in the lateral direction. Therefore, the rotating arm 102 is rotatable in the lateral and vertical directions at the rear end thereof, and the front end of the rotating arm 102 swings vertically and horizontally.

At the front end of the rotating arm, a mounting arm 110 extending upward from the guide disk mounting portion 98 is mounted so as to be rotatable up and down around a rotating shaft 112. Further, the rotating arm 102 is configured to be divided into two parts in the front and rear at an intermediate part thereof, and the parts divided in the front and rear are connected by a screw rod 116. For this reason, the length of the rotating arm 102 can be adjusted by the screwing amount of the screw rod 116.

As described above, the frame 94 is provided with a mechanism for adjusting the force for pressing the front side of the frame 94 toward the ground. Briefly, this mechanism is provided with respect to a frame 94b extending forward from the frame 94.
A weight (weight) is arranged at a position facing the rotary shaft 104, and the weight applied to the front side of the frame 94 is adjusted by the weight of the weight. That is, specifically, the slide shaft 116 projecting rearward is provided substantially at the center of the base 101 in the width direction.
The weight 118 is provided on the shaft 116 so as to be slidable along the length direction of the shaft 116. The weight 118 is attached to the shaft 116 by a screw 120.
It can be fixed at a predetermined position above.

Next, the structure for attaching the base 101 to the fixing member 96 via the rotating shaft 104 will be further described with reference to FIG. The fixing member 96 is provided with two holding plates 122 for holding the pins 121 at both ends of the pins 121 constituting the rotating shaft 104, projecting rearward at predetermined intervals in the horizontal direction. . The holding plate 122 has a hole 124 into which the pin 121 is inserted. When the pin 121 is inserted into the hole 124, the horizontal pipe portion 12 extending in the horizontal direction of the cross pipe 126 attached to the base 101.
6a is disposed between the two holding plates 122, and the pin 121 is inserted through the inside of the horizontal pipe portion 126a. Therefore, the cross pipe 126 can rotate about the pin 121 with respect to the fixing member 96 as an axis.

The cross pipe 126 is connected to the horizontal pipe section 12.
6a and a vertical pipe portion 126b which is an independent pipe with respect to the horizontal pipe portion 126a. The attachment of the cross pipe 126 to the base 101 is performed in the same manner as the attachment to the fixing member 96. That is, the base 1
01, at a predetermined interval in the vertical direction,
Two holding plates 130 for fixing the pins 128 to be inserted into 26b are provided at predetermined intervals in the vertical direction. Each holding plate 130 has a hole 13 into which a pin 128 is inserted.
2 are formed. When the pin 128 is inserted into the hole 132, the vertical pipe portion 126b of the cross pipe 126 is disposed between the two holding plates 130, and the pin 128 is inserted through the vertical pipe portion 126b.

As described above, when the base 101 is attached to the fixing member 96 by the cross pipe 126, the frame 94 can be turned up and down around the pin 121 and turned left and right around the pin 128. It is possible to move.

The structure of the harvester body described above is
A straight line x1 connecting the rotating shaft 104 of the frame and the rotating shaft 109 of the rotating arm, a rotating shaft 99 at the front end of the frame 94, and a rotating shaft 112 at the front end of the rotating arm 102 are shown. The connecting straight line x2 forms a parallel link that is always parallel regardless of the rotation of the frame 94 about the rotation axis 104. Therefore, even if the front end of the frame 94 moves up and down due to the rotation of the frame 94, the straight line x2 moves to a position parallel to the initial position, so that the guide disk 38 always stays parallel to the ground. It can be maintained.

The broken line in FIG. 6 indicates that the frame 94 has been rotated about the rotation shaft 104 due to the guide disk 38 being pushed upward from the ground. As described above, even when the ground has irregularities, the guide disk 38 can be rotated on a plane parallel to the ground by employing the parallel link structure as described above. In addition, since the weight 118 is provided on the rear side of the frame 94 to balance the front side and the rear side of the frame 94, the guide disk can follow the unevenness of the ground satisfactorily.

Next, a transfer device for transferring the spherical vegetables cut by the cutting blade 40 to the container side will be described. FIG. 8 is a perspective view of the transfer device, and FIGS. 9 and 10 are diagrams illustrating a skeleton of the transfer device. The transporting device 36 has a configuration in which the transport path 71 through which the spherical vegetables are transported is formed in a conical shape.
The two belt conveyors 79, 79 are sandwiched between left and right sides. The belt 70 constituting the belt conveyor 79 is fixed inside the frame 37. The fixed shaft 72 located at the center of the cone is provided so as to form an angle of approximately 45 degrees with respect to the horizontal plane. That is, the apex of the cone is also oriented at 45 degrees with respect to the horizontal plane. Each belt 70 is provided such that its apex is rotatable with respect to the fixed shaft 72, and rotates around the fixed shaft 72.

The shape of the belt 70 will be further described. Each belt 70 has an umbrella shape, that is, a cone formed so as to expand from one end side to the other end side of the fixed shaft 72, and has a shape such that the cone is crushed as if a force is applied from the lateral direction. It looks almost cylindrical when viewed from the front provided. In other words, each belt 70 has a shape in which a cone (umbrella shape) is crushed so that surfaces parallel to each other are formed along the front-rear direction. The parallel surfaces of the two belts 70 in the front-rear direction face each other to form the transport path 71.

Each belt 70 is formed in a fan shape obtained by dividing a circle into quarters when viewed from the side. 74 is the belt 7
Reference numeral 76 denotes an upper rotating shaft portion which is located at an upper portion of the belt 70 and extends in the horizontal direction. The belt 70 rotates in such a manner as to be folded by the upper and front rotating shaft portions 74 and 76. The fixed shaft 72 is located at the center of such belt driving, and the fixed shaft 72 itself is provided without rotating.

The fixed shaft 72 is fixed so as to protrude upward from the upper surface of the inclined frame 78 which is a frame constituting the transport device 36. The inclined frame 78 is attached to each belt 7
It is provided so as to be located inside the lower side where 0 is open. Describing the inclined frame 78, a rear end portion of the inclined frame 78 is connected in a lateral direction by a connecting member 80 connecting the inclined frames 78 to each other. The connecting member 80 is formed in a U-shape whose front is open when viewed from above. The two U-shaped arms are the mounting portions 80 a provided extending rearward from the rear end of the inclined frame 78. Each belt 7 is placed on the placing portion 80a.
A pulley 82 as driving means for driving 0 is mounted. The connecting member 80 is fixed to the rear frame member 41 so as to connect the vertical members 41 a and 41 b of the rear frame member 41 of the frame 37.

Reference numeral 82 denotes a pulley, and each mounting portion 80a
The upper rotating shaft portion 74 is provided horizontally so that the axial direction faces the front-rear direction. Each pulley 82
9 is formed to have a diameter closely contacting the inner wall surface of the belt 70, and FIG.
The driving force is transmitted to the belt 70 by rotating
To rotate the belt 70. A drive chain is hung on the rear side of the pulley 82, and a driving force from a driving device (not shown) is transmitted. Further, a holding pulley 84 is provided so as to be inscribed inside the lower end of the front rotating shaft 76. That is, the holding pulley 84 is provided so that its axis is oriented vertically so as to protrude below the front end of the inclined frame 78. The holding pulley 84 does not drive by itself, but rotates freely as the belt 70 is driven by the pulley 82.

On the lower surface of the inclined frame 78, not only the holding pulley 84 forming the front rotating shaft portion 76 as described above but also the entire arc portion 85 on the lower side of the belt 70 is further provided. A plurality of holding pulleys 86 are provided. Each of the holding pulleys 86 has a diameter such that the holding pulleys 86 can adhere to the inner surface side of the belt 70, and rotates freely in the direction of arrow C in FIG. As described above, since the plurality of holding pulleys 84 are provided, the belt 70 does not collapse when holding the spherical vegetables on the lower side, and can reliably hold the spherical vegetables. Can be.

A plurality of uneven portions 88 are provided on the surface of each of the belts 70, 70 for securely holding the spherical vegetables. In the present embodiment, the uneven portion 88 is formed by forming urethane or the like into a rectangular parallelepiped and sticking it to the surface of the belt 70. The provision of the uneven portions 88 in this way prevents the spherical vegetables from being damaged while securely holding the spherical vegetables during transportation.

FIG. 11 shows the fixed shaft 72 and the cap 89. The upper side of the fixed shaft 72 is a screw rod 72
The screw rod 72a is formed as
A cap 89 is provided for holding the fixed shaft 72 at the top of the belt 70, that is, at the intersection of the upper rotation shaft 74 and the front rotation shaft 76. The cap 89 is formed separately from the screw part 89a formed at the center with a screw hole 90 into which the screw rod 72a can be screwed, and is formed rotatably with respect to the screw rod 72a. And a bearing 89b formed with the insertion hole 91 at the center.
The top of the belt 70 (the upper rotary shaft 74 and the front rotary shaft 7
6) is fixed to the upper end of the bearing 89b, and the belt rotates about the fixed shaft 72. Therefore, if a bearing 92 as a bearing is provided on the inner wall side of the insertion hole 91 as shown in FIG. 11, the rotation of the belt 70 will be performed more smoothly.

Since the insertion hole 91 has a diameter that allows the insertion hole 91 to freely rotate with respect to the fixed shaft 72, the bearing 89b tends to descend along the axial direction of the fixed shaft 72 due to the weight of the belt 70 itself. Arrow E in FIG. 11). On the other hand, the inner wall surface of the lower end portion 85 formed in an arc shape of the belt 70 is in contact with the pulley 82. For this reason, even if the above-mentioned bearing portion 89b is going to descend, the pulley 82 aligned with the position of the inner wall surface of the lower end portion 85 of the belt 70 comes into contact with the inner wall surface of the belt 70, and the force of the bearing portion 89b going down. To face.

In the belt 70, the bearing 89b is
The belt 70 tends to be slacked at all times because the lower end is pressed by the pulley 82 so as not to be lowered. But,
The screw rod 72 of the fixed shaft 72 is located above the bearing 89b.
Since the threaded portion 89a to be screwed into a is provided, if the belt 70 is slack, the threaded portion 89a can be loosened to raise the bearing portion 89b by the elastic force of the belt 70 itself. If the belt 70 is stretched and the gap with the pulley 82 can be further reduced,
The belt 70 can be brought into close contact with the pulley 82 by tightening the screw portion 89a. Thus, by providing the cap 89 capable of adjusting the tension of the belt 70 at the position of the apex of the cone, even a belt conveyor having pulleys that are not oriented in parallel to each other as in the present invention,
Belt slack or excessive belt tension can be prevented, and the transfer operation can be performed satisfactorily.

As described above, the transporting device 36 moves along the arc located at the lower end portion 85 of the belt 70 formed in the shape of a quarter fan in a side view (in the direction of arrow D in FIG. 10). The spherical vegetables are transported upward. Therefore, the spherical vegetables harvested at a steeper angle than the conventional transport device can be raised. By raising the spherical vegetables at a steep angle in this way, a longer distance was conventionally required to raise the same height, whereas in the present embodiment, the spherical vegetables were raised at a shorter distance H. Can be. For this reason, the transport device can be downsized.

As described above, the belt holds the spherical vegetables in one place while being raised at a steep angle, and the belt does not hold several different places. can do. Also, because the transport path is short, for example, the position adjustment of the cutting blade is poor,
Even if the harvested spherical vegetables are damaged, if the harvesting operation is stopped at the time that the wound is noticed, the transport distance is shorter than the conventional device with a longer transport distance. The number of damaged vegetables in the transport device can be reduced, and the vegetables can be prevented from being wasted.

When the spherical vegetables are cut and conveyed to the conveying device, they first come into contact with the belts 70 provided on the left and right sides. However, as in the embodiment of the present invention, the holding pulley is used. If the front rotating shaft portion 76 by 84 is provided so as to extend substantially in the vertical direction, the belt hits the spherical vegetables vertically, so that the spherical vegetables are securely held and the spherical vegetables are immediately conveyed upward. And the spherical vegetables can smoothly enter between the belts in accordance with the traveling by the traveling means. Further, in such a transport device, belts are provided on the left and right sides of the transport path, and the bottom surface is open and the ground is visible, so that vegetable debris adhering to the cut spherical vegetables is removed from the lower ground surface. Therefore, it is possible to prevent such garbage such as vegetable waste from being transported.

Although the present invention has been described in detail with reference to the preferred embodiments, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention. Of course.

[0050]

According to the spherical vegetable harvester of the present invention, a frame whose front side is swingable in the left-right direction and the vertical direction with respect to the traveling means, and the root portion of the spherical vegetable is attached to the frame. Blade, which is rotatable about two rotating shafts extending in the vertical direction, and is located forward of the cutting blade of the frame so as to oppose the spherical vegetables before being cut by the cutting blade. Since it has two provided disc-shaped guide discs, the guide disc which rotates freely can hold the spherical vegetables to be cut next securely and without damage and guide them toward the cutting blade. Even if a spherical vegetable grows out of line, it can be reliably cut at the root without being damaged and harvested. In addition, the driver can follow the position of the cutting blade according to the disturbance of the row with the swingable frame and the guide disc without changing the traveling direction according to the disturbance of the row of spherical vegetables. It is not necessary to adjust the position of the vehicle, and the driving operation becomes easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire spherical vegetable harvester according to the present invention.

FIG. 2 shows a traveling means from the spherical vegetable harvester shown in FIG.
It is a perspective view which shows the place which omitted the conveyance apparatus and the spherical vegetable processing apparatus.

FIG. 3 is a front view of the spherical vegetable harvester of FIG. 2;

FIG. 4 is a side view of the spherical vegetable harvester of FIG. 2;

FIG. 5 is an enlarged side view showing the vicinity of a front frame member.

FIG. 6 is a side view of another embodiment of the harvester main body.

FIG. 7 is an explanatory view showing an attachment structure of a frame of the harvester main body in FIG. 6;

FIG. 8 is a perspective view showing a transport device.

FIG. 9 is a perspective view showing a skeleton of the transport device shown in FIG. 8;

FIG. 10 is a side view of a skeleton of the transport device.

FIG. 11 is an enlarged sectional view of a fixed shaft and a cap.

FIG. 12 is a plan view of a conventional spherical vegetable harvester.

FIG. 13 is a side view of a conventional spherical vegetable harvester.

[Explanation of symbols]

 Reference Signs List 30 spherical vegetable harvester 31 mounting member 32 traveling means 34 spherical vegetable harvester main body 35 mounting arm 36 transfer device 37 frame 38 guide disk 40 cutting blade 41 rear frame member 42 rotating shaft 44 bearing 45 upper link 46 lower link 48 Front frame member 50 Vertical member 51 Horizontal member 52, 80 Connecting member 60 Rotating shaft 62 Handle 63 Screw rod 64 Female thread part 70 Belt 71 Conveying path 72 Fixed shaft 74 Upper rotating shaft part 76 Front rotating shaft part 78 Inclined frame 79 Belt conveyor Reference Signs List 80 connecting material 82 pulley 84, 86 holding pulley 89 cap 90 screw hole 91 insertion hole 94 frame 96 fixing member 98 guide disk mounting portion 99, 104, rotating shaft 100 fixed arm 101 base 102 rotating arm 108 mounting member 109, 121 , 28-pin 110 mounted arm 114 threaded rod 116 axis 118 weight 120 screws 121,128 pins 122, 130 holding plate 124, 132 holes 126 cross pipe

Continued on the front page. (72) Inventor Keiji Okada 1177, Kitaishidocho, Minami-Nagano, Nagano City, Nagano Prefecture 3 Within the Association of Economic and Agricultural Cooperatives in Nagano Prefecture (72) Inventor Kenji Mizutani Matsumotomichi, Imai, Matsumoto, Nagano 7160 Katakura Machinery Industries Co., Ltd. (72) Inventor Naohiro Hori 7160 Matsumoto Michi, Matsumoto-shi, Nagano F-term in Katakura Machinery Co., Ltd.

Claims (8)

[Claims] 1. A spherical vegetable harvesting machine that travels in a field by a traveling means and harvests spherical vegetables planted in the field, wherein a front side of the traveling means is swingable in a left-right direction and a vertical direction with respect to the traveling means. A cutting blade attached to the frame, for cutting a root of a spherical vegetable; and a rotatable centering on two rotating shafts extending in the vertical direction, respectively, before being cut by the cutting blade. A spherical vegetable harvester, comprising: two disk-shaped guide disks provided on a front side of a cutting blade of the frame so as to face each other with a spherical vegetable therebetween. 2. An opposite side of each of the guide disks,
2. The spherical vegetable harvester according to claim 1, wherein each of the spherical vegetable harvesters is provided to be inclined downward. 3. The spherical vegetable harvester according to claim 1, wherein an interval between the guide disks is adjustable. 4. The guide shaft according to claim 1, wherein a rotation axis of each of said guide discs is provided so as to be able to incline forward and backward with respect to said traveling direction with respect to said frame. A spherical vegetable harvester as described. 5. The spherical vegetable harvester according to claim 1, wherein each of said guide disks is provided so as to be vertically movable. 6. The spherical vegetable harvester according to claim 1, wherein said cutting blade is provided so as to be vertically movable. 7. The apparatus according to claim 1, further comprising a pressing force adjusting means capable of adjusting a pressing force with which the front side of the frame is pressed toward the ground. Spherical vegetable harvester. 8. The guide frame according to claim 1, wherein the guide disk is rotatable in a plane parallel to the ground even when the front side of the frame swings up and down. 8. The method according to claim 1, wherein the holding is performed.
A spherical vegetable harvester as described.